第一产业
常压干燥法一般使用的温度是() ["95℃~105℃","110℃~120℃","50℃~60℃","120℃以上"]
以下具有完全解理的宝石是() ["尖晶石","锆石","托帕石","碧玺"]
What are two components of the OoS Integrated Services (IntServ) model? () ["link efficiency","admission control","classification and marking","shaping and policing","congestion avoidance using the RTP protocol","resource reservation using the RSVP protocol"]
农业形成与发展对自然和社会有哪些影响?
()、()、兰、菊一起被称为“四君子”。